Interactions of self-etch adhesives with resin composites.

Interactions of self-etch adhesives with resin composites. Research Abstract Details 

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Interactions of self-etch adhesives with resin composites. Abstract Text:

Rie Kurokawa,Werner J Finger,Marcus Hoffmann,Tatsuo Endo,Masafumi Kanehira,Masashi Komatsu,Atsufumi Manabe,Rie Kurokawa,Werner J Finger,Marcus Hoffmann,Tatsuo Endo,Masafumi Kanehira,Masashi Komatsu,Atsufumi Manabe,

OBJECTIVE: Aim of this in vitro study was to investigate the correlation of shear bond strength and marginal cavity adaptation, together with polymerization shrinkage and contraction stress, using the combination of four self-etch adhesives and three resin composites. MATERIALS AND METHODS: Interactions were studied between one two-step and three one-step adhesives, and the hybrid-type resin composites, Beautifil (BEU, Shofu) and Venus (VEN, Heraeus), and an experimental nano-hybrid resin composite NEUN (NEU, Heraeus). For all 12 combinations shear bond strengths (SBS) were determined on human dentin. Marginal adaptation (MGW) was assessed in cylindrical butt-joint dentin cavities. Further, polymerization contraction and contraction stress of the resin restoratives were measured. RESULTS: Significant determinants of SBSs on dentin were time of testing (10min or 24h) and adhesives (p<0.001). Marginal adaptation was best for NEU, followed by VEN and BEU. Only the resin composite used was a highly significant determinant of cavity adaptation. Polymerization shrinkage after 5min was 2.58, 2.74, and 1.53% for BEU, VEN, and NEU, respectively. Polymerization contraction stresses were largest for BEU, less for VEN, and smallest for NEU (p<0.05). CONCLUSIONS: No correlation was found between bond strength and marginal cavity adaptation. In contrast, reduced shrinkage and low polymerization contraction stress of resin composites were identified as important determinants of marginal cavity adaptation.

Interactions of self-etch adhesives with resin composites. Publishing Authors By Initials

R Kurokawa,WJ Finger,M Hoffmann,T Endo,M Kanehira,M Komatsu,A Manabe,R Kurokawa,WJ Finger,M Hoffmann,T Endo,M Kanehira,M Komatsu,A Manabe,

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Interactions of self-etch adhesives with resin composites. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of dentistry

VOLUME: 35

Page Numbers: 923-9

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ISSN: 0300-5712

DAY: 1

MONTH: 11

YEAR: 2007

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LANGUAGE: eng

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AFFILIATION: Graduate School of Medical and Dental Sciences, Department of Oral Biological Science, Division of Orthodontics, Niigata University, Japan.

Country: England

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MEDLINETA: J Dent

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